Question

Consider the reactions (A) H₂O₂ + 2HI → I₂ + 2H₂O (B) HOCl + H₂O₂ → H₃O⁺ + Cl⁻ + O₂ Which statement is correct about H₂O₂ with reference to these reactions?

• A. an oxidising agent in (A) and reducing agent in (B)
• B. an oxidising agent in (A) and (B)
• C. a reducing agent in (A) and oxidising agent in (B)
• D. a reducing agent in both (A) and (B)

Hint:

Hydrogen peroxide can act as both oxidising and reducing agent.

Answer 1

The Correct Option is A

Step 1: In (A), H₂O₂ oxidises I⁻ to I₂.
Step 2: In (B), H₂O₂ itself is oxidised to O₂.